CN111482065A - Novel system of storing up of carbide slag thick liquid - Google Patents
Novel system of storing up of carbide slag thick liquid Download PDFInfo
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- CN111482065A CN111482065A CN202010455955.1A CN202010455955A CN111482065A CN 111482065 A CN111482065 A CN 111482065A CN 202010455955 A CN202010455955 A CN 202010455955A CN 111482065 A CN111482065 A CN 111482065A
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- 239000002893 slag Substances 0.000 title claims abstract description 90
- 239000007788 liquid Substances 0.000 title claims description 14
- 238000004537 pulping Methods 0.000 claims abstract description 137
- 239000002002 slurry Substances 0.000 claims abstract description 102
- 238000003860 storage Methods 0.000 claims abstract description 85
- 239000006228 supernatant Substances 0.000 claims abstract description 16
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 13
- 230000023556 desulfurization Effects 0.000 claims abstract description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003546 flue gas Substances 0.000 claims abstract description 12
- 239000002351 wastewater Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 114
- 238000011010 flushing procedure Methods 0.000 claims description 46
- 238000003756 stirring Methods 0.000 claims description 31
- 238000012423 maintenance Methods 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract description 10
- 229910052602 gypsum Inorganic materials 0.000 abstract description 9
- 239000010440 gypsum Substances 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 8
- 238000011282 treatment Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 6
- 239000000920 calcium hydroxide Substances 0.000 description 6
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 6
- 239000005997 Calcium carbide Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 229920000915 polyvinyl chloride Polymers 0.000 description 4
- 239000004800 polyvinyl chloride Substances 0.000 description 4
- 239000002585 base Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 230000003009 desulfurizing effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- -1 at the moment Chemical compound 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
Abstract
The invention relates to the technical field of flue gas desulfurization, and particularly discloses a novel carbide slag slurry preparing and storing system which mainly comprises a guide chute, a slurry preparing box and a slurry storing box. According to the invention, a part of carbide slag slurry is stored in the pulping box and the slurry storage box, so that the storage and the spare amount of the carbide slag can be increased, the loss of a desulfurizer caused by untimely purchase of the carbide slag is prevented, the carbide slag slurry subjected to impurity removal by the pulping box in the slurry storage box can be naturally precipitated, and the chloride ion content of the carbide slag in the slurry storage box is reduced by inputting the supernatant of the carbide slag into the desulfurized gypsum wastewater to adjust the pH value or perform other treatments, so that the problem that the desulfurized gypsum of the carbide slag is difficult to dehydrate due to the influence of the chloride ion is effectively solved.
Description
Technical Field
The invention relates to the technical field of flue gas desulfurization, in particular to a novel carbide slag slurry preparing and storing system.
Background
The carbide slag is the waste after the polyvinyl chloride is generated by the acetylene method, the main component of the carbide slag is calcium hydroxide, and other impurity components comprise carbide, silicon dioxide, coke, ferrosilicon, sulfide, phosphide, tar, chloride ions and the like. The carbide slag is mainly produced from polyvinyl chloride and vinyl acetate by a calcium carbide method. About 1.45 tons of calcium carbide is consumed for producing 1 ton of polyvinyl chloride, 1 ton of multi-calcium-carbide slag is generated after each ton of calcium carbide is hydrolyzed, and 2 tons of multi-calcium-carbide slag is discharged for producing 1 ton of polyvinyl chloride. The carbide slag has large quantity and high alkali content, contains harmful substances such as sulfur, arsenic and the like, and can block a sewer, block a river bed and damage fishery production when discharged without treatment. The land stacking occupies land and pollutes the environment. Because the calcium hydroxide is rich, the calcium hydroxide is gradually used as a desulfurizing agent in the production process of a thermal power plant; in order to reduce the occupation of the carbide slag on the field and easily cause a large number of problems when the carbide slag is randomly stored, the carbide slag is poured into a container for storage. However, the carbide slag stored in the container needs to be subjected to processes such as impurity removal and stirring during utilization, and is time-consuming and labor-consuming.
Therefore, how to utilize the carbide slag in the container quickly and conveniently is a problem to be solved by those skilled in the art.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the following technical scheme:
in view of the above, the technical problem to be solved by the present invention is how to quickly and conveniently utilize carbide slag in a container, and therefore, the present invention provides a novel system for preparing and storing carbide slag slurry.
In order to achieve the purpose, the invention provides the following technical scheme:
a novel system of storing up of carbide slag thick liquid mainly includes:
the pulping device comprises a pulping box, a high-level inlet and a low-level outlet are arranged on the side surface of the pulping box, a pulping water pump is arranged outside the pulping box, a water inlet of the pulping water pump is connected with the low-level outlet through a pipeline, a water outlet of the pulping water pump is connected with the high-level inlet through a pipeline, a pulping valve is arranged between the pulping water pump and the low-level outlet, and a pulping valve is arranged between the pulping water pump and the high-level inlet; a pulping pipeline is arranged on one side of the high-position inlet, which is positioned in the pulping box, the pulping pipeline is respectively connected with a plurality of pulping nozzles with downward outlets, and the plurality of pulping nozzles are uniformly distributed on the horizontal section of the pulping box at the same level;
the stock guide groove comprises a flat bottom plate arranged on the side face of the pulping box, side baffles are respectively arranged on two sides of the flat bottom plate in the inclination direction, a car blocking table is arranged at the high position of the flat bottom plate in the vertical direction, a flushing pipe is arranged at the upper part of the included angle position between the car blocking table and the flat bottom plate and is connected with a pressure water source, a plurality of flushing holes facing the flat bottom plate are arranged in the flushing pipe, and the plurality of flushing holes cover the whole flat bottom plate in the horizontal direction;
the slurry storage tank is connected with a water outlet of the pulping water pump, a supernatant outlet, a stirring inlet and a slurry outlet are respectively arranged on the side surface of the slurry storage tank from top to bottom, the supernatant outlet and the slurry outlet are respectively connected with a water inlet of the slurry storage water pump arranged on one side of the slurry storage tank through pipelines, the stirring inlet is connected with the water outlet of the slurry storage water pump through a pipeline, a water replenishing port is also arranged on the side surface of the slurry storage tank, and the water replenishing port is connected with the pressure water source; a stirring pipeline is arranged on one side of the stirring inlet, which is positioned in the slurry storage tank, and is respectively connected with a plurality of stirring nozzles with downward outlets, and the plurality of stirring nozzles are uniformly distributed on the horizontal cross section of the slurry storage tank;
the water outlet of the pulping water pump is connected with the pulp storage tank and/or the flue gas desulfurization device through a pipeline, and the water outlet of the pulp storage water pump is connected with the flue gas desulfurization device through a pipeline.
As a further improvement of the invention, the flushing hole is arranged at a position below the middle part of the flushing pipe in the horizontal direction, and the aperture of the flushing hole is 12-30 mm.
As a further improvement of the invention, the lowest position of the flushing pipe is provided with a water discharging hole.
As a further development of the invention, the headbox and/or the stock chest is of a cylindrical structure with an open top.
As a further improvement of the invention, the distance between the low-level outlet and the bottom of the pulping box in the vertical direction is 1 m; the distance between the outlet of the pulping nozzle and the bottom of the pulping box in the vertical direction is 1 m, and the caliber of the pulping nozzle is 50 mm.
As a further improvement of the invention, the distance between the slurry outlet and the bottom of the slurry storage box in the vertical direction is 1 m, the distance between the outlet of the stirring nozzle and the bottom of the slurry storage box in the vertical direction is 1 m, and the caliber of the pulping nozzle is 50 mm.
As a further improvement of the invention, the side surface and the position close to the bottom of the pulping box and/or the pulp storage box are provided with access holes, and the access holes are detachably provided with access doors.
As a further improvement of the invention, a flushing outlet is arranged on the side surface of the pulping box at the upper part of the high-level water inlet in the vertical direction, and the flushing outlet is connected with a water inlet of the pulping water pump through a pipeline; and a flushing valve is arranged between the flushing outlet and the pulping water pump.
As a further improvement of the invention, an overflow pipe is arranged on the side surface of the pulping box and/or the pulp storage box, which is close to the top opening by 0.5 meter, and the overflow pipe is provided with a pipeline connected with a waste water discharge channel.
As a further improvement of the invention, the side surface of the pulping box and/or the pulp storage box close to the bottom is provided with an overhaul drain pipe which is provided with an overhaul drain valve.
According to the technical scheme, the vehicle stopping platform provides a rigid barrier for the vehicle to be unloaded, prevents the vehicle from crushing the discharge chute or sliding along the discharge chute, and provides certain protection for the vehicle; meanwhile, the water flow is released by the water flushing pipe arranged at the top of the discharging chute, so that the carbide slag dumped in the discharging chute by the vehicle is flushed into the pulping box, the carbide slag can enter the pulping box from the discharging chute with a smaller angle, the unloading height of the heavy-duty vehicle is favorably reduced, and the carbide slag mixed with the water flow is also favorably used for fully utilizing the capacity of the pulping box; in addition, the flushing pipe can also achieve the purpose of supplementing water for the pulping box while finishing unloading work. The pulping water pump washes to play roles of stirring and removing impurities; store some carbide slag thick liquid through the mud storage box, not only can promote storage and the reserve volume of carbide slag, prevent because the desulfurizer disappearance that the carbide slag purchase leads to in untimely, also can carry out the natural sedimentation to the carbide slag thick liquid through slurrying case edulcoration in the mud storage box, through inputing carbide slag supernatant to desulfurization gypsum waste water in adjust pH value or carry out other processings, reduce the chloride ion content of carbide slag in the mud storage box, effectual solution carbide slag desulfurization gypsum is because the chloride ion influences, the problem of difficult dehydration. When the pulping water pump and/or the slurry storage water pump are/is stopped, the pulping box and the slurry storage box can both play a role of a carbide slag storage container, so that the influence of solid carbide slag on the surrounding environment is effectively avoided, the pulping box is also effectively utilized for harmless storage, and the secondary pulping utilization of the carbide slag is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic front view of the structure of the present invention;
in the figure: the device comprises a lane 1, a vehicle stopping platform 2, a flushing pipe 3, a flushing hole 4, a side baffle 5, a flat base 6, an overflow pipe 7, a maintenance drain pipe 8, a maintenance drain valve 9, a pulping tank 10, an access door 11, a pulping pipeline 12, a pulping nozzle 13, a flushing valve 14, a pulping valve 15, a pulping valve 16, a pulping water pump 17, a first pulp conveying valve 18, a second pulp conveying valve 19, a third pulp conveying valve 20, a stirring nozzle 21, a stirring pipeline 22, a supernatant outlet 23, a stirring inlet 24, a pulp outlet 25, a pulp storage water pump 26 and a fourth pulp conveying valve 27.
Detailed Description
The core of the invention is to provide a novel system for preparing and storing the carbide slag slurry, which avoids the problem easily occurring in the process of storing the solid carbide slag, the storage and the spare amount of the carbide slag can be improved by storing a part of the carbide slag slurry in the pulping box and the slurry storage box, the loss of a desulfurizer caused by untimely purchase of the carbide slag can be prevented, the carbide slag slurry subjected to impurity removal in the pulping box in the slurry storage box can be naturally precipitated, and the chloride ion content of the carbide slag in the slurry storage box is reduced by inputting the supernatant of the carbide slag into the desulfurized gypsum wastewater to adjust the pH value or perform other treatments, so that the problem that the carbide slag desulfurized gypsum is difficult to dehydrate due to the influence of chloride ions is effectively solved.
The embodiments described below do not limit the contents of the invention described in the claims. The entire contents of the configurations shown in the following embodiments are not limited to those required as solutions of the inventions described in the claims.
Referring to fig. 1, a novel system for preparing and storing carbide slag slurry mainly comprises a material guiding groove, a slurry preparing box 10 and a slurry storing box,
a high-level inlet and a low-level outlet are arranged on the side surface of the pulping box 10, a pulping water pump 17 is arranged outside the pulping box 10, a water inlet of the pulping water pump 17 is connected with the low-level outlet through a pipeline, a water outlet of the pulping water pump 17 is connected with the high-level inlet through a pipeline, a pulp outlet valve 16 is arranged between the pulping water pump 17 and the low-level outlet, and a pulping valve 15 is arranged between the pulping water pump 17 and the high-level inlet; a pulping pipeline 12 is arranged on one side of the high-position inlet, which is positioned inside the pulping box 10, the pulping pipeline 12 is respectively connected with a plurality of pulping nozzles 13 with downward outlets, and the plurality of pulping nozzles 13 are uniformly distributed on the same horizontal transverse section of the pulping box 10; in order to ensure the continuity of the pulping process, the two pulping water pumps 17 are respectively a working pump and a standby pump.
The guide chute comprises a flat bottom plate 6 arranged on the side surface of the carbide slag slurry tank, an included angle of 5-30 degrees is formed between the flat bottom plate 6 and the horizontal plane, preferably 20 degrees, side baffles 5 are respectively arranged on two sides of the flat bottom plate 6 in the inclined direction, and a groove for allowing the carbide slag to pass through is formed by the flat bottom plate 6 and the side baffles 5 on the two sides; the car stop platform 2 is arranged at the high position of the flat base plate 6 in the vertical direction, the length of the car stop platform 2 in the direction perpendicular to the unloading direction of the flat base plate 6 is not less than 3.5m, and the height of the car stop platform 2 is 200-350 mm; in concrete operation, keep off the wall of building of car platform 2 for the fixed reinforced concrete structure that sets up in lane 1 ground, lane 1 can be for the platform that supplies the vehicle current that is located slurrying case 10 one side, also can be for the ramp that the confession vehicle that is located slurrying case 10 one side crawls thereby realizing unloading, keep off car platform 2 with the upper portion of the contained angle position of flat bed 6 is provided with wash pipe 3, wash pipe 3 is connected with pressure water source, wash pipe 3 is provided with a plurality of orientation the flashing hole 4 of flat bed 6, and is a plurality of the flashing hole 4 equipartition in wash pipe 3 makes the rivers of flushing hole 3 release can cover whole flat bed 6.
The slurry storage tank is connected with a water outlet of the pulping water pump 17, a supernatant outlet 23, a stirring inlet 24 and a slurry outlet 25 are respectively arranged on the side surface of the slurry storage tank from top to bottom, the supernatant outlet 23 and the slurry outlet 25 are respectively connected with a water inlet of a slurry storage water pump 26 arranged on one side of the slurry storage tank through pipelines, the stirring inlet 24 is connected with a water outlet of the slurry storage water pump 26 through a pipeline, a water replenishing port is also arranged on the side surface of the slurry storage tank, and the water replenishing port is connected with the pressure water source; a stirring pipeline 22 is arranged on one side of the stirring inlet 24 positioned in the slurry storage tank, the stirring pipeline 22 is respectively connected with a plurality of stirring nozzles 21 with downward outlets, and the plurality of stirring nozzles 21 are uniformly distributed on the same horizontal transverse section of the slurry storage tank; the number of the supernatant outlets 23 is multiple, in practical operation, the number of the supernatant outlets 23 is 3, and the distances from the bottoms of the pulp storage boxes to the vertical direction are 4 meters, 5 meters and 6 meters respectively.
The water outlet of the pulping water pump 17 is connected with the pulp storage tank and/or the flue gas desulfurization device through a pipeline, the water outlet of the pulping water pump 26 is connected with the flue gas desulfurization device through a pipeline, a first pulp conveying valve 18 and a second pulp conveying valve 19 are arranged between the water outlet of the pulping water pump 17 and the pulp storage tank, the pipeline between the first pulp conveying valve 18 and the second pulp conveying valve 19 is connected with the flue gas desulfurization device, a third pulp conveying valve 20 is arranged between the first pulp conveying valve 18 and the flue gas desulfurization device, and a fourth pulp conveying valve 27 is arranged between the water outlet of the pulping water pump 26 and the flue gas desulfurization device.
In the concrete operation, the pulping water pump 17 is a horizontal centrifugal pump, and the rated flow of the pulping water pump 17 is 990m3The rated lift is 35.5 meters, and the power of the motor is 160 kW. The diameters of the inlet and outlet pipelines of the pulping water pump 17 are both 350 mm; the washing pipeline comprises a main pipeline connected with a high-position inlet and a branch pipeline connected with the pulping nozzle 13, the model of the main pipeline is DN400, the model of the branch pipeline is DN150, the length of the branch pipeline is 24 meters, the material of the pipeline is common carbon steel, the pulping nozzle 13 is a ceramic nozzle, and the diameter of the pulping nozzle 13 is 50 mm. According to multiple comparison tests, the optimum density of the carbide slag slurry is 1100-1200 kg/m3 for ensuring the working efficiency of the carbide slag slurry, the lowest water outlet pressure of the pulping nozzle 13 is 0.3MPa for ensuring that the density is maintained at a low-level outlet, and the distance between the outlet of the pulping nozzle 13 and the bottom of the pulping box 10 in the vertical direction is 1 meter. The slurry storage pump 26 may be the same as the slurry pump 17 in arrangement and type, the slurry line may be the same as the agitation line 22 in arrangement and type, and the slurry nozzle 13 may be the same as the agitation nozzle 21 in arrangement and type.
In practical use, the vehicle stopping platform 2 provides a rigid barrier for the vehicle to be unloaded, prevents the vehicle from crushing the discharge chute or sliding along the discharge chute, and provides certain protection for the vehicle; meanwhile, the water flow is released by the water flushing pipe 3 arranged at the top of the discharge chute, so that the carbide slag dumped in the discharge chute by the vehicle is flushed into the slurry making tank 10, the carbide slag can enter the slurry making tank 10 from the discharge chute with a smaller angle, the reduction of the unloading height of the heavy-load vehicle is facilitated, and the carbide slag mixed with the water flow is also beneficial to the full utilization of the capacity of the slurry making tank 10; in addition, the flushing pipe 3 also serves the purpose of replenishing the pulping box 10 with water while completing the unloading work. When solid carbide slag enters the pulping tank 10, a working pulping water pump 17 pumps out slurry at the bottom, at the moment, a first slurry conveying valve 18 is closed, a pulping valve 15 is opened, the slurry impacts the solid carbide slag through a pulping nozzle 13, calcium hydroxide particles with low density in the carbide slag are suspended in the slurry, impurities such as scrap iron with high density sink into the tank bottom, and the pulping water pump 17 is flushed to play roles of stirring and removing impurities; after the pulping water pump 17 works for a period of time, the carbide slag in the pulping box 10 is fully stirred, the first slurry conveying valve 18 is opened, and carbide slag slurry with the density meeting the requirement is conveyed to containers such as a desulfurizing tower through an output pipeline and the like for removing sulfur dioxide in flue gas. The carbide slag slurry can be output to the slurry storage box, a part of the carbide slag slurry is stored through the slurry storage box, the storage and the spare amount of the carbide slag can be increased, the loss of a desulfurizer caused by untimely purchase of the carbide slag is prevented, natural precipitation can also be performed on the carbide slag slurry in the slurry storage box after the impurity removal of the slurry making box 10, at the moment, the solid part in the carbide slag is precipitated at the bottom of the slurry storage box, the liquid part is positioned at the upper part of the slurry storage box, the bottom is mainly the solid carbide slag which is not dissolved in water and mainly comprises calcium hydroxide, the top is a solution mainly comprising calcium hydroxide, at the moment, chloride ions which are harmful to the desulfurized gypsum and contained in the raw material carbide slag are also in the solution at the upper part, and the part of the solution is collectively called as the carbide slag supernatant; the pH value can be adjusted or other treatments can be carried out by inputting the carbide slag supernatant into the desulfurized gypsum wastewater, so that the chloride ion content of the carbide slag in the slurry storage box is reduced, the problem that the desulfurized gypsum of the carbide slag is not easy to dehydrate due to the influence of chloride ions is effectively solved, and after the carbide slag supernatant is discharged, the water content of the carbide slag slurry can be ensured by arranging a water replenishing pipe in the slurry storage box; when the carbide slag slurry in the slurry storage tank needs to be used, the slurry can be stirred and prepared in a mode of spraying water through the stirring nozzle 21, and the stirring and preparing mode is the same as the pulping mode of the slurry preparation tank 10. When the pulping water pump 17 and/or the pulp storage water pump 26 are/is stopped, the pulping box 10 and the pulp storage box can both play the role of a carbide slag storage container, so that the influence of solid carbide slag on the surrounding environment is effectively avoided, the pulping box 10 is also effectively utilized for harmless storage, and the repulping and utilization of the carbide slag are facilitated.
In a specific embodiment, further, the flushing hole 4 is arranged below the middle of the flushing pipe 3 in the horizontal direction, and the diameter of the flushing hole 4 is 12-30 mm; through this kind of mode of setting, reduce carbide slag or other debris and block up the flushing hole, and then the trouble that the defeated material effect of reduction blowpit that leads to takes place.
In a specific embodiment, further, a water discharge hole is arranged at the lowest position of the flushing pipe 3, and the water discharge hole is mainly used for emptying residual moisture in the flushing pipe 3 after a pressure water source connected with the flushing pipe 3 stops supplying water, so that the pipeline is prevented from being corroded by the moisture in the pipeline, and the residual moisture is frozen in the pipeline in winter, and the pipeline is burst or the flushing hole 4 is blocked.
In a specific embodiment, further, the slurrying tank 10 and/or the slurry storage tank are of a cylindrical structure with an open top; the box body with the structure is more stable, and the manufacturing cost of the pulping box 10 and the pulp storage box is saved under the condition of ensuring safety.
In a specific embodiment, further, the distance of the low-level outlet from the bottom of the pulping box 10 in the vertical direction is 1 meter; the distance between the outlet of the pulping nozzle 13 and the bottom of the pulping box 10 in the vertical direction is 1 meter, and the caliber of the pulping nozzle 13 is 50 mm.
In a specific embodiment, further, the distance between the slurry outlet 25 and the bottom of the slurry storage tank in the vertical direction is 1 meter, the distance between the outlet of the stirring nozzle 21 and the bottom of the slurry storage tank in the vertical direction is 1 meter, and the caliber of the pulping nozzle 13 is 50 mm.
In a specific embodiment, further, the side surface and the position close to the bottom of the pulping box 10 and/or the pulp storage box are provided with access holes, and the access holes are detachably provided with access doors 11. The access hole is provided with a flange at the outer part of the pulping box 10 or the pulp storage box, and the access door 11 is connected with the flange through a bolt; the bottom of slurrying case 10 or mud storage tank is provided with overhauls drain pipe 9, it is provided with overhauls drain valve 9 to overhaul drain pipe 9. During the maintenance, the surplus thick liquid in the thick liquid case 10 or the thick liquid storage box is emptied to the accessible maintenance drain pipe 9, gets into the thick liquid case 10 or the thick liquid storage box inside through the access hole, maintains thick liquid case 10 or the thick liquid storage box.
In a specific embodiment, further, a flushing outlet is arranged on the side surface of the pulping box 10 at the upper part of the high inlet in the vertical direction, and the flushing outlet is connected with a water inlet of the pulping water pump 17 through a pipeline; a flush valve 14 is arranged between the flush outlet and the pulping water pump 17. The flushing outlet is mainly used for depositing solid carbide slag in the pulping box 10 and blocking the low-level outlet when the pulp box is not used for a long time, so that the pulping water pump 17 cannot work normally, at the moment, clear water at the top is sucked by the flushing outlet and then is sprayed out from the high-level inlet through the pulping nozzle 13, and bottom sediments are floated again to form pulp. The supernatant outlet 23 may also serve the same function as the flushing outlet.
In a specific embodiment, furthermore, an overflow pipe 7 is arranged on the side surface of the pulping tank 10 and/or the pulp storage tank near the top opening for 0.5 m, the overflow pipe 7 is provided with a pipeline connected with a waste water discharge channel, when the water level in the pulping tank 10 or the pulp storage tank exceeds a warning value, in order to prevent the pulp from flowing freely and causing uncontrollable influence on the surrounding environment and the like, the pulp or moisture exceeding the warning value can be discharged controllably through the overflow pipe 7.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a novel system of storing up of carbide slag thick liquid which characterized in that mainly includes:
the pulping device comprises a pulping box (10), wherein a high-level inlet and a low-level outlet are formed in the side surface of the pulping box (10), a pulping water pump (17) is arranged outside the pulping box (10), a water inlet of the pulping water pump (17) is connected with the low-level outlet through a pipeline, a water outlet of the pulping water pump (17) is connected with the high-level inlet through a pipeline, a pulp outlet valve (16) is arranged between the pulping water pump (17) and the low-level outlet, and a pulping valve (15) is arranged between the pulping water pump (17) and the high-level inlet; a pulping pipeline (12) is arranged on one side of the high-position inlet, which is positioned inside the pulping box (10), the pulping pipeline (12) is respectively connected with a plurality of pulping nozzles (13) with downward outlets, and the plurality of pulping nozzles (13) are uniformly distributed on the same horizontal transverse section of the pulping box (10);
the guide groove comprises a flat bottom plate (6) arranged on the side face of the pulping box (10), side baffles (5) are respectively arranged on two sides of the flat bottom plate (6) in the inclination direction, a car blocking platform (2) is arranged at the high position of the flat bottom plate (6) in the vertical direction, a flushing pipe (3) is arranged at the upper part of the included angle position of the car blocking platform (2) and the flat bottom plate (6), the flushing pipe (3) is connected with a pressure water source, a plurality of flushing holes (4) facing the flat bottom plate (6) are formed in the flushing pipe (3), and the whole flat bottom plate (6) is covered by the plurality of flushing holes (4) in the horizontal direction;
the slurry storage tank is connected with a water outlet of the pulping water pump (17), a supernatant outlet (23), a stirring inlet (24) and a slurry outlet (25) are respectively arranged on the side surface of the slurry storage tank from top to bottom, the supernatant outlet (23) and the slurry outlet (25) are respectively connected with a water inlet of a slurry storage water pump (26) arranged on one side of the slurry storage tank through pipelines, the stirring inlet (24) is connected with a water outlet of the slurry storage water pump (26) through a pipeline, a water replenishing port is also arranged on the side surface of the slurry storage tank, and the water replenishing port is connected with the pressure water source; a stirring pipeline (22) is arranged on one side of the stirring inlet (24) positioned in the slurry storage box, the stirring pipeline (22) is respectively connected with a plurality of stirring nozzles (21) with downward outlets, and the plurality of stirring nozzles (21) are uniformly distributed on the same horizontal transverse section of the slurry storage box;
the water outlet of the pulping water pump (17) is connected with the pulp storage tank and/or the flue gas desulfurization device through a pipeline, and the water outlet of the pulp storage water pump (26) is connected with the flue gas desulfurization device through a pipeline.
2. The novel carbide slag slurry preparing and storing system according to claim 1, characterized in that: the flushing hole (4) is arranged at a position below the middle part of the flushing pipe (3) in the horizontal direction, and the aperture of the flushing hole (4) is 12-30 mm.
3. The novel carbide slag slurry preparing and storing system according to claim 1, characterized in that: and a water discharge hole is formed in the lowest position of the flushing pipe (3).
4. The novel carbide slag slurry preparing and storing system according to claim 1, characterized in that: the pulping box (10) and/or the stock chest are of a cylindrical structure with an open top.
5. The novel carbide slag slurry preparing and storing system according to claim 1, characterized in that: the distance between the low-level outlet and the bottom of the pulping box (10) in the vertical direction is 1 m; the distance between the outlet of the pulping nozzle (13) and the bottom of the pulping box (10) in the vertical direction is 1 m, and the caliber of the pulping nozzle (13) is 50 mm.
6. The novel carbide slag slurry preparing and storing system according to claim 1, characterized in that: the distance between the slurry outlet (25) and the bottom of the slurry storage box in the vertical direction is 1 m, the distance between the outlet of the stirring nozzle (21) and the bottom of the slurry storage box in the vertical direction is 1 m, and the caliber of the pulping nozzle (13) is 50 mm.
7. The novel carbide slag slurry preparing and storing system according to claim 1, characterized in that: the side of slurrying case (10) and/or the mud storage box, the position that is close to the bottom are provided with the access hole, the access hole can be dismantled and be provided with access door (11).
8. The novel carbide slag slurry preparing and storing system according to claim 1, characterized in that: a flushing outlet is arranged on the side surface of the pulping box (10) at the upper part of the high-position water inlet in the vertical direction, and the flushing outlet is connected with a water inlet of the pulping water pump (17) through a pipeline; a flushing valve (14) is arranged between the flushing outlet and the pulping water pump (17).
9. The novel carbide slag slurry preparing and storing system according to claim 1, characterized in that: an overflow pipe (7) is arranged at a position, close to a top opening by 0.5 m, on the side surface of the pulping box (10) and/or the pulp storage box, and a pipeline is arranged on the overflow pipe (7) and connected with a wastewater discharge channel.
10. The novel carbide slag slurry preparing and storing system according to claim 1, characterized in that: the side of slurrying case (10) and/or mud storage box is close to the bottom and is provided with maintenance drain pipe (9), maintenance drain pipe (9) are provided with maintenance drain valve (9).
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| CN202010455955.1A CN111482065A (en) | 2020-05-26 | 2020-05-26 | Novel system of storing up of carbide slag thick liquid |
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| CN202010455955.1A CN111482065A (en) | 2020-05-26 | 2020-05-26 | Novel system of storing up of carbide slag thick liquid |
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Cited By (1)
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| CN111847495A (en) * | 2020-08-21 | 2020-10-30 | 华润电力登封有限公司 | Carbide slag desulfurized gypsum production process and device |
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